The free-toilets put up by the officials, as per the rules, when the bus stand was inagurated had been converted into paid toilets following instructions from the Mayor Rajan Chellappa.
The objective was to fill the coffers of the corporation, Anandan an advocate and PIL litigant alleged.
There were 16 toilets in the bus stand, said a sanitary official. He said he had suggested to the Commissioner to convert at least some toilets near the parking area as free toilet for the benefit of the poor, it was under the consideration of senior officials.
Officials said some toilets had been closed due to scarcity of water.